Manufacturing process for a file folder

ABSTRACT

Process for manufacturing file folders for records and documents, said file folders comprising a certain number of flaps, with one face of each flap being provided with three tiered pockets for holding the documents, said process consisting of using two sheets of flexible material, whereby the narrowest of the sheets is connected to the widest by a stitching or by a line of glue, then of folding over the two sheets so as to form evenly tiered pockets, all objects resulting from said process and arrangements being within the scope of the invention.

United States Patent Cariven June 13, 1972 MANUFACTURING PROCESS FOR A FILE FOLDER Inventor: Andre Raymond Daniel Cariven, 5, rue

Saint Pantaleon, Toulouse, France Filed: Oct. 7, 1969 App]. No.: 864,970

Foreign Application Priority Data Oct 7, i968 France ..5403 Nov. 29, 1968 France ..l75902 1.8. CI. ..93/l R, 150/39, 229/72 Int. Cl ..B3ld Field ofSeareh ..l50/39,4l;229/72,68;93/84, 93/1 [56] References Cited UNITED STATES PATENTS 1,791,703 2/1931 Benedict et a] ..150/39 2,280,889 4/1942 Buxton 150/39 Primary Examiner-Bernard Stickney Attorney-Waters, Roditi. Schwartz & Nissen 57 ABSTRACT Process for manufacturing file folders for records and documents, said file folders comprising a certain number of flaps, with one face of each flap being provided with three tiered pockets for holding the documents, said process consisting of using two sheets of flexible material, whereby the narrowest of the sheets is connected to the widest by a stitching or by a line of glue, then of folding over the two sheets so as to form evenly tiered pockets, all objects resulting from said process and arrangements being within the scope of the invention.

4 Claims, 8 Drawing Figures PATENTEDJUH 13 I972 SHEET 1 [IF 2 PATENTEDJUH 13 I972 SHEU 2 HIE 2 MANUFACTURING PROCESS FOR A FILE FOLDER DESCRIPTION This invention relates to file folders used for office work or for record filing and to a manufacturing process for such file folders.

An object of the invention is a file folder comprising several flaps which are folded over each other and each having, on one of its faces, tiered pockets designed to hold documents.

Depending on the intended utilization, this file folder may be manufactured in the most diverse materials ranging from natural or artificial leather, for office utilizations, to simple strong paper of kraft or similar type, when the file is intended for records.

Another object of the invention is a process for the manufacture of file folders of this kind in paper, cardboard or flexible plastic and more particularly file folders in kraft paper for records, the aim of this process being to permit the manufacture of such file folders at extremely low cost.

According to the process, a file folder is manufactured having any number of fiaps, with three pockets for each flap, simply by using two sheets of kraft paper, or other similar material, which are folded over such that the lower pocket is formed by folding the outer sheet, while the other two pockets are formed by folding the inner sheet previously connected to the outer sheet by a stitching or a line ofglue,

According to an advantageous embodiment of the invention, the inner and outer sheets consist of endless strips, permitting the continuous manufacture of folders by simple cutting.

The description to follow, with reference to the accompanying drawings, provided by way of example only, will aid in better understanding the practical implementation of the invention.

FIGS. I to 4 are perspective views of the first four phases of the continuous strip manufacture.

FIGS. 5 to 7 show the cutting, tucking and folding operations.

FIG. 8 is a half-open perspective view of the completed file folder.

In the example shown in the drawings, one begins with two rolls of kraft paper, one of large width for forming the outer sheet I and the other of substantially smaller width for forming the inner sheet 2. FIG. I shows sections of these two strips, one of which has been shaded for the sake of clarity. The strips 1 and 2 are unrolled over each other with different offsets on both sides.

As shown in FIG. 2, the outer strip 1 is folded over at 3 to reinforce its free edge and the inner strip is stitched thereover longitudinally at 4 then (FIG, 3) folded longitudinally at S, and strip I at 6, the interval between the two fold lines 5 and 6 being substantially equal to that between the stitching 4 and the fold 5.

The two parts, 9 and 10, thus folded of the two strips are folded over each other, as shown in FIG. 4, and the assembly thus formed is cut at 7 (FIG. 5) such that the section obtained has a length corresponding to as many times the width of a flap of the file as the number of flaps desired.

The cutting lines are reinforced by means of a cloth or paper ribbon (FIG. 6), it being possible to reinforce the folds I I between the flaps with similar strips, although this is not indispensable.

Then the flaps are folded (FIG. 7) so as to obtain the file folder shown in FIG. 8.

It goes without saying that, without departing from the scope of the invention, it is possible to modify the abovedescribed form of embodiment.

I claim:

I. Manufacturing process for a file folder provided with several flaps to be folded over each other and comprising three tiered pockets on each flap, said process consisting of assembling along one longitudinal line two sheets of flexible material, of foldin the two sheets along difierent lines parallel to the said longitudinal line so as to form evenly tiered pockets, and of folding the assembly along transverse lines to form the flaps.

2. Process according to claim I wherein the two sheets of flexible material are furnished by the unrolling of two continuous rolls.

3. Process according to claim 2 wherein the flexible material is kraft paper.

4. Process according to claim I wherein the assembling of the two sheets is accomplished by machine stitching.

i i l 

1. Manufacturing process for a file folder provided with several flaps to be folded over each other and comprising three tiered pockets on each flap, said process consisting of assembling along one longitudinal line two sheets of flexible material, of folding the two sheets along different lines parallel to the said longitudinal line so as to form evenly tiered pockets, and of folding the assembly along transverse lines to form the flaps.
 2. Process according to claim 1 wherein the two sheets of flexible material are furnished by the unrolling of two continuous rolls.
 3. Process according to claim 2 wherein the flexible material is kraft paper.
 4. Process according to claim 1 wherein the assembling of the two sheets is accomplished by machine stitching. 